Whakaoti mō x
x\in \left(0,7\right)
Graph
Tohaina
Kua tāruatia ki te papatopenga
\left(2x-14\right)x<0
Whakamahia te āhuatanga tohatoha hei whakarea te 2 ki te x-7.
2x^{2}-14x<0
Whakamahia te āhuatanga tohatoha hei whakarea te 2x-14 ki te x.
2x\left(x-7\right)<0
Tauwehea te x.
x>0 x-7<0
Kia tōraro te otinga, me tauaro rawa ngā tohu o te x me te x-7. Whakaarohia te tauira ina he tōrunga te x he tōraro te x-7.
x\in \left(0,7\right)
Te otinga e whakaea i ngā koreōrite e rua ko x\in \left(0,7\right).
x-7>0 x<0
Whakaarohia te tauira ina he tōrunga te x-7 he tōraro te x.
x\in \emptyset
He teka tēnei mō tētahi x ahakoa.
x\in \left(0,7\right)
Ko te otinga whakamutunga ko te whakakotahi i ngā otinga kua whiwhi.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
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\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}